Fireproof knitting fabric

ABSTRACT

A fireproof knitting fabric includes an interior lining and an exterior layer. The interior lining is obtained by interweaving flame retardant fiber. The exterior layer is obtained by carburizing oxidized PAN yarn (O.X.PAN) and then interweaving the oxidized PAN yarn and the flame retardant fiber of the interior lining. The obtained fireproof knitting fabric is featured by fireproofness, thermal insulation, light weight, soft and comfortable texture.

BACKGROUND

1. Field of Invention

The present invention relates to a fireproof knitting fabric. More particularly, the present invention relates to a fireproof retardant knitting fabric comprising an interior lining and an exterior layer. The interior lining is obtained by interweaving flame retardant fiber. The exterior layer is obtained by interweaving oxidized PAN yarn (O.X.PAN) and the flame retardant fiber of the interior lining. The obtained fireproof knitting fabric is featured by fireproofness and thermal insulation.

2. Description of Related Art

Fireproof knitting fabric has very wide applications such as fireproof clothing for fireman, military uniform for soldier, protective apparel for chemical experimentalist, and protective apparel for people working at high temperature environment. All of above applications re quire clothes to be fireproof and thermal insulating. Conventional process for manufacturing fireproof knitting fabric is to carburize yarn to form a layer of fireproof material on the surface of the yarn, but the carburized yarn is too fragile and easily broken. Therefore, an additional fabric has to be combined together to reinforce mechanical strength. Taiwan Patent No. M308170 “A Flame Retardant Fabric” discloses the use of an adhesive to adhere a surface material on the base layer fabric made of flame retardant artificial fiber. Its surface material can be selected from household fabric, suede fabric, or artificial leather. However, the obtained flame retardant fabric is not soft enough to be a wearable cloth, and the disclosed adhesive is not fireproof so it might be melted at high temperature which leads to the separation of the base layer fabric and the surface material.

Taiwan Patent No. M296139 “Structural Modification of Fireproof Fabric” discloses a fabric comprising a first fireproof layer, a second fireproof layer, and a third fireproof layer. The first fireproof layer is made by thermally bonding a silicon dioxide fabric and a thermal bonding cotton fabric. The second fireproof layer is an oxidized fiber fabric below the first fireproof layer. The third fireproof layer is a flame retardant fabric below the second fireproof layer. By the arrangement of the three layers mentioned above, a fireproof and thermal insulating fabric can be obtained. However, the manufacturing process of the three-layered fabric is complicated and the obtained fabric is heavily weighted which leads to undesirable inconvenience when a rescue worker wearing clothes made of such fabric is relieving victims of a disaster.

SUMMARY

In order to overcome drawbacks of conventional fireproof apparel, the present invention provides a fireproof knitting fabric obtained by interweaving flame retardant fiber and oxidized PAN yarn. The fireproof knitting fabric comprises an interior lining and an exterior layer. The interior lining is obtained by interweaving the flame retardant fiber. The exterior layer is obtained by interweaving the oxidized PAN yarn and the flame retardant fiber of the interior lining. The above oxidized PAN yarn has gone through oxidation and carburization processes.

The fabric of the present invention provides following advantages:

1. The fireproof knitting fabric of the present invention has wide applications in various fields due to its fireproofness and thermal insulation properties. Those who wear clothes made of such fabric are able to safely work at high temperature environment.

2. The fireproof knitting fabric of the present invention provides a soft and light-weight interior lining, allowing people to wear comfortably without feeling any burden.

3. The fireproof knitting fabric of the present invention provides an exterior layer made by interweaving the oxidized PAN yarn and the flame retardant fiber, so its mechanical strength can be reinforced.

BRIEF DESCRIPTION OF THE DRAWINGS

The invention can be more fully understood by reading the following detailed description of the embodiment, with reference made to the accompanying drawings as follows:

FIG. 1 illustrates a fireproof knitting fabric according to one embodiment of the present invention;

FIG. 2 is an enlarged diagram illustrating a portion of an interior lining according to one embodiment of the present invention;

FIG. 3 is an enlarged diagram illustrating a portion of an exterior layer according to one embodiment of the present invention; and

FIG. 4 is a diagram illustrating a flame retardant fiber and an oxidized PAN yarn interwoven together according to one embodiment of the present invention.

DETAILED DESCRIPTION

Reference will now be made in detail to the present embodiments of the invention, examples of which are illustrated in the accompanying drawings.

Refer to FIG. 1, the fireproof knitting fabric 1 consists of an interior lining 11 and an exterior layer 12.

The interior lining 11, as shown in FIG. 2 and FIG. 4, is obtained by interweaving flame retardant fiber 13. The interior lining 11 is featured by not only high flame retardancy, high thermal insulation and high limit oxygen index, but also soft texture and comfortable wear.

An exterior layer 12 as shown in FIG. 3 is made by oxidizing and carburizing oxidized PAN yarn (O.X.PAN) 14 for obtaining fireproofness and thermal insulation properties, and then interweaving the flame retardant fiber 13 of the interior lining 11 to obtain the exterior layer 12 (as shown in FIG. 4). The obtained fireproof knitting fabric 1 provides very high mechanical property so the flame retardant fiber 13 and the oxidized PAN yarn 14 can not be easily separated.

Accordingly, the fireproof knitting fabric 1 can be used for manufacturing clothes for applications in various areas. For example, fireproof clothing for fireman, military uniform for soldier, protective apparel for chemical experimentalist, and protective apparel for people working at high temperature environment. The interior lining 11 with soft texture allows wearer to have a comfortable wear feeling, also the fireproof knitting fabric 1 with light weight property adds no burden to wearer, which improve efficiency for fire saving, military operation and doing experiment. In addition, the exterior layer 12 featured by fireproofness and thermal insulation allows wearer to be protected from being injured when working at high temperature environment. 

1. A fireproof knitting fabric consisting of flame retardant fiber and oxidized PAN yarn, the fireproof knitting fabric comprising an interior lining and an exterior layer, wherein the interior lining is obtained by interweaving the flame retardant fiber and the exterior layer is obtained by interweaving the oxidized PAN yarn and the flame retardant fiber of the interior lining.
 2. The fireproof knitting fabric of claim 1, wherein the oxidized PAN yarn has gone through oxidization and carburization processes. 